import type { TileRef } from "../tileset/types.ts";
import type { FACE } from "../utils/math.ts";
import type { BlockShapeID } from "./BlockShape.ts";
/**
 * Describes a block type: its shape, per-face texture tiles, and collidability.
 * Block ID 0 is always air and is never stored in the registry.
 */
export interface BlockDefinition {
    /**
     * Unique numeric identifier.
     * @note
     * 0 is reserved for air.
     **/
    id: number;
    /** Human-readable name for editor display. */
    name: string;
    /** ID of the BlockShape to use for geometry generation. */
    shapeId: BlockShapeID;
    /**
     * Per-face tile references. If a face is absent, defaultTexture is used.
     * Allows grass blocks to have a different top texture from their sides.
     */
    faceTextures: Partial<Record<FACE, TileRef>>;
    /** Fallback tile used for any face not listed in faceTextures. */
    defaultTexture?: TileRef;
    /** If false, the mesh builder will not emit collision geometry for this block. */
    collidable: boolean;
}
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